Manual fire alarm buttons (commonly known as manual alarms) are installed in public places. When a fire is manually confirmed and the plexiglass piece on the button is pressed, a signal can be sent tothe fire alarm controller. After the fire alarm controller receives the alarm signal, it will display Number or location of the alarm button and sound the alarm sound.
Non-polar two-line bus, using a dedicated integrated chip, multi-level filtering of software and hardware, improves the anti-interference ability of the alarm button, and has good suppression ability of electromagnetic interference. When pressing the button, a special key must be used to manually reset it, and it has an independent normally open contact Point output can directly control other external devices, and also integrates a fire telephone socket.
